JPH0123408Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to an electric shaver in which a head case having inner and outer cutters is swingable relative to a main body case.

[Conventional technology]

Conventionally, this type of oscillating electric shaver has been provided with a slideable operation button for turning on and off the inner blade drive switch on the outer surface of the main body case, and an interlocking mechanism between the operation button and the head case. When you slide the operation button in a certain direction, the inner blade drive switch turns on and the head case tilts; when you slide it in the opposite direction, the inner blade drive switch turns off and the head case returns to its original upright position. There is a device that allows the device to return to its original position (for example, Japanese Patent Application Laid-Open No. 57-37472). and,
To prevent the head case from inadvertently wobbling when in use or not, the head case is provided with a moderation means for regulating the rotation angle position, and the head case can be regulated in its upright position and tilted position. (Utility Model Application Publication No. 58-138567). Further, in order to prevent the inner cutter drive switch from being accidentally operated erroneously, there is also a moderation means provided between the operation button and the inner cutter drive switch to restrict the positions to the on position and the off position. (Reference unknown).

[Problem that the invention attempts to solve]

When moderation means are provided for both the head case and the inner blade drive switch, which are operated by one operation button as described above, the operation of the operation button is difficult. Furthermore, it is difficult to match the two moderations in this way because it requires strict control of component dimensions.

Therefore, with this invention, both the swinging operation of the head case and the operation of other operated means such as the on/off mechanism of the inner blade drive switch can be easily operated even though their positions are restricted. The primary purpose is to do so.

A second object of this invention is to easily, effectively and reliably exhibit the moderation functions of both the head case oscillation and other operated means.

[Means to solve the problem]

In order to achieve the above object, the present invention provides one moderation means that can be used both for regulating the position of the swing angle of the head case and for regulating the position of other operated means.
Further, the moderation means is provided on the side of the head case, which tends to become unstable due to vibration.

〔Example〕

The drawing shows an embodiment of the electric shaver according to the present invention.

(Body case structure) In Figs. 1 to 6, the main body case 1 is formed into a rectangular cylindrical shape by abutting front and rear plastic cases 1a and 1b and integrally connecting them with screws 2, etc. A mounting base 3 is fixed to the upper part, and the head case 4 has two positions on the upper part: an upright position in which the head case 4 is substantially in a straight line with the main body case 1, and a tilted position in which the main body case 1 is tilted toward the front side. It is pivotally connected around a shaft 5 so as to be freely swingable.

Specifically, as shown in FIG. 4, shafts 5, 5 protruding from the left and right ends of the mounting base 3 are rotatably inserted into shaft holes 6, 6 recessed in the left and right inner surfaces of the head case 4. In addition to fitting, one of the holes 8 and 9 provided at the front and rear of the elastic plates 7 and 7 installed at the left and right ends of the mounting base 3,
Engagement elements 10 provided on the left and right inner surfaces of the head case 4,
10, the head case 4 is regulated in position into an upright position (see FIG. 1) and a tilted position (see FIG. 2), respectively.

(Inner blade drive mechanism) In FIGS. 4 and 5, a plastic vibrating body 11 that elastically swings and deforms in the left-right direction is attached to the inside of the head case 4.
1 has a pin 12 erected in a forward-slanted manner at the center of the upper end surface and protrudes upward from the central opening 13 of the head case 4;
This pin 12 attaches an inner cutter 14 via an inner cutter holder 15. On the other hand, a motor 18 is arranged inside the main body case 1, and the motor shaft 18a is connected to the mounting base 3.
An eccentric cam 21 having an eccentric pin 20 is fixed to the projecting end thereof, and the eccentric pin 20 is slidably engaged in a groove 22 provided on the lower surface of the vibrating body 11 in the front-rear direction. A long groove 2 long in the front-rear direction provided on the lower surface of the combined slider 23
4. When this happens, the eccentric cam 21 is rotated by the drive of the motor 18, and the slider 23 that engages with the eccentric pin 20 of this cam 21 vibrates back and forth to the left and right, vibrating the vibrating body 11 in the same direction. The inner cutter 14 vibrates back and forth from side to side due to the vibration.

(Outer cutter mounting means) In FIGS. 4 and 5, a mesh-shaped outer cutter 25 is removably fitted to the head case 4 via an outer cutter holder 16, and is attached to the inner surface of the outer cutter 25. The inner blade 14 makes sliding contact. The outer blade holder 26 is connected to the head case 4
It has means for maintaining the attached state. As a specific example of the mounting and holding means, the engaging element 10 and the elastic plate 7 used as the swing moderation means of the head case 4 are used. That is, the engagement button 17 is fitted into the openings 16 formed in the left and right side walls of the head case 4 so as to be movable in the inside and outside directions of the case and in a manner that prevents it from coming out in the direction outside the case. The engaging element 10 is fixed in a protruding manner, and the outer end surface 17a of the engaging button 17 is formed to have a mountain-shaped cross section. Therefore, the engagement button 17 is always urged to protrude by the elastic plate 7, and the retaining recesses 26a formed on the inner surfaces of the left and right side walls of the outer cutter holder 26 are inserted into the outer end surface 17a of the engagement button 17 so that the outer cutter holder It can be freely engaged and detached as 26 is attached and detached.

(Interior parts to the main body case) In FIG. 6, inside the main body case 1, in addition to the motor 18, there is a first battery 27 used in normal operation that supplies power to the motor 18, and a capacity of the first battery 27. Spare second battery 2 for use when the battery is running low
8 and a press circuit board 29 are built in. The first battery 27 and the second battery 28 may be either storage batteries or dry batteries, and it does not matter whether they are rechargeable or not. On the press circuit board 29 are an inner blade drive switch 30 that opens and closes the energizing circuit to the motor 18, and a changeover switch that can switch the energizing circuit to the motor 18 from the first battery 27 in a steady state to the second battery 28 side. 31, a transformer 32, and a contact plate 34 that opens and closes the charging circuit when the charging plug 33 is moved in and out.

(Swinging operation mechanism and power switch on/off mechanism) In FIG.
A push-type first operation button 35 and a second operation button 36 are arranged side by side on the left and right, and the inner blade drive switch 30 is activated by pushing the first operation button 35.
At the same time that the head case 4 is turned on, the head case 4 changes to a tilted position, and the inner blade drive switch 30 is turned off by pushing the second operation button 36.
The head case 4 returns to the upright position.

Specifically, Figures 1 to 4 and Figure 7
In the figures to FIG. 9, the first operation button 35
and the main body case 1 corresponding to the second operation button 36.
A seesaw type operation board 38 is disposed inside. The operation plate 38 is bent into a dogleg shape, and a fulcrum part 39, which is a bent part at the center, is placed on a support plate 40 hanging downward from the mount 3, with one end 41 above the fulcrum part 39. A first operation button 35 is attached to the other end 42, and a second operation button 36 is attached to the other end 42.By alternately pushing the first operation button 35 and the second operation button 36, one end 41 and the other end 42 are operated. Alternate back and forth (seesaw movement). A switch operation piece 43 is formed at the tip of one end 41 on which the first operation button 35 is attached, extending to the position of the inner blade drive switch 30, and the other end 42 on which the second operation button 36 is attached. A swing operation piece 44 is formed at the tip, and this operation piece 44 is linked to the head case 4 via a swing plate 45. The swing plate 45 is formed in a generally triangular shape, and has a shaft 47 near the right side wall 46 inside the main body case 1.
A pin 49 is protruded from the lower end of the shaft 47 of the front beveled edge 48, and this pin 49 is attached to the swing operation piece 44 with a long length formed in the vertical direction. A long hole in the lever 52 is engaged with the hole 50 and has a pin 51 projecting from the end above the shaft 47 of the same front end bevel 48, and this pin 51 projects downward from the right end of the head case 4. 53
is engaged with.

In such a case, press the operation panel 38 as shown in FIG.
is switched to the first operation position by pushing the first operation button 35 to move its one end 41 backward and the other end 42 forward.
The switch operating piece 43 contacts the inner blade drive switch 30 to turn it on, and at the same time, the oscillating plate 45 moves to the shaft 47 through the engagement between the pin 49 and the elongated hole 50.
The head case 4 is pivoted forward in the direction of arrow A in FIG. 1 to rotate the head case 4 forward about the shaft 5 (see FIG. 2). At this time, the engaging element 10 of the moderation means of the head case 4 falls into one hole 8 of the elastic plate 7 and engages with the head case 4, so that the head case 4 is regulated in position to the tilted posture shown in FIG. The operation plate 38 is located at the first operation position where the head case 4 is turned on.
It is held via a swing plate 45 that connects the operation plate 38 with the oscillating plate 45.

As shown in FIGS. 1 and 8, the operation plate 38
is pushed in the opposite direction and switched to the second operation position by the push operation of the second operation button 36, the switch operation piece 43 turns off the inner blade drive switch 30, and at the same time the oscillating plate 45
swings in the opposite direction about the shaft 47, returning the head case 4 to the upright position and rotating it around the shaft 5 (see FIG. 1). At this time, as the head case 4 rotates, the elastic plate 7 is elastically deformed inward, and is removed from the hole 8 of the engaging element 10, sliding on the outer surface of the elastic plate 7, and moving into the other hole 9. As a result, the head case 4 is restrained in its upright position, and the operation plate 38 is held in the second operation position where it is switched off.

(Lock means) In order to more reliably prevent the head case 4 from swinging inadvertently or the inner blade drive switch 30 from being turned on due to the first operation button 35 being pushed during carrying, storage, or storage, a lock is provided. Means will be provided. 1 and 7, the locking means includes a lock button 54 on the outer surface of the right side wall 46 of the main body case 1, which can be slid vertically.
The lock button 54 has a lock pin 55 on its inner surface, and under normal conditions, the lock pin 55 is located at a position below the shaft 47 on the front end bevel 48 of the swing plate 45, and the lock pin 55 is located at a position below the shaft 47 on the front end bevel 48 of the swing plate 45. In order to prevent the oscillating plate 45 from swinging even when the pushbutton is operated, when the lock button 54 is slid downward, the lock pin 55 locks into the front end bevel 48 of the oscillating plate 45.
By pushing the first operation button 35 downwardly, the swing plate 45 can be swung via the operation plate 38 as described above.

(Battery switching means) Figures 1, 7, and 10 to 12
As shown in the figure, a push-type third operation button 37 is provided on the front outer surface of the main body case 1 below the first and second operation buttons 35 and 36. Main body case 1 corresponding to the third operation button 37
A switching plate 66 is arranged inside. Switching plate 6
6 is disposed on the fixed terminal of the changeover switch 31 so as to be slidable in the vertical direction, has an inclined surface 67 on a part of its front side, and has a movable terminal 68 on its rear side. The third operation button 37 has a leg portion 70 having a slope 69. When the third operation button 37 is pushed and the slope 69 slides on the slope 67 and the switching plate 66 slides downward, the movable terminal 68 opens. By contacting the fixed terminal of the changeover switch 31, switching is made from the first battery 27 in the steady state to the second battery 28 side. However, this switching operation is not possible when the head case 4 is in an upright position, and becomes possible only when the head case is in a tilted position. Also,
When the head case 4 is returned from the tilted position to the upright position, the head case 4 is returned to the first battery 27 side in a steady state in conjunction with this.

Specifically, a switching lever 71 is disposed between the switching plate 66 and the swinging plate 45, and the switching lever 71 has a recess 7 at the upper end of the lever body.
2, and an engaging element 73 protruding from the lower edge of the swing plate 45 is engaged in this recess 72, and an engaging stepped part 74 is provided on one side of the lower end of the lever body to engage this engaging element. An engaging step portion 75 provided on one side of the upper end of the switching plate 66 is engaged with the joining step portion 74 . Therefore, when the head case 4 is in the upright position, the engagement step portion 74 of the switching lever 71
and the engagement stepped portion 75 of the switching plate 66 are engaged with each other, and therefore, at this time, the third operation button 37
Even if the switch is pushed, the switching plate 66 cannot be slid downward, making it impossible to switch to the second battery 28 side. However, the first operation button 3
5 is pushed and the inner blade drive switch 30 is turned on via the operation plate 38, and at the same time the oscillating plate 4 is turned on.
5 swings, the head case 4 assumes a tilted position, and at the same time, the swinging plate 45 swings, causing the switching lever 71 to slide downward via the engaging element 73, so that the engaging stepped portion 74 moves into the switching plate. 66 engagement step portion 75
spaced downward from. Only at this time can the switching plate 66 be slid downward. Therefore, when the third operation button 37 is pushed at this time, the switching plate 66 slides downward through the action of contacting the slopes 67 and 69, and the switching switch 31 is moved downward.
switch to the second battery 28 side. When the second operation button 36 is pushed from the switching state to the second battery 28 side, the switching lever 7
1 slides the switching plate 66 upward, and as a result, the switching plate 66 is returned to its original position, and the third operating button 37 projects through the abutting action of the slopes 67 and 69.

[Another example]

The entire details of the illustrated embodiment are as described above.
The present invention is not limited to this. for example,
The moderating means for the head case 4 may be other than the combination of the engaging element 10 and the elastic plate 7.
For example, as shown in FIG.
0, and the engaging protrusions 80 are selectively engaged with the recesses 81, 81 provided at two positions on the inner surface of the side wall of the main body case 1 as the head case 4 swings, so that the head case 4 is in an upright position. It may also be possible to regulate the position between the tilted position and the tilted position. Further, as shown in FIG. 14, an engager 82 is attached to the main body case 1 side via a spring 83 so as to be freely retractable, and recesses 84 are provided at two positions on the circular lower end surface of the bearing portion of the head case 4. 84, the engaging element 82 may be configured to be able to regulate the position of the head case 4 between an upright position and a tilted position.

In addition to the function of operating the head case 4 to swing the head case 4, the operation plate 38 has other functions other than the function of operating the inner blade drive switch 30 on and off. It may also be a function for operating the sliding blade unit 85 to move in and out. That is, the sharp edge unit 85 is attached to an opening 86 formed at the upper rear surface of the main body case 1 so as to be rotatable around a shaft 87, and the operation plate 38 is attached to the first and second
The edge cutting blade unit 85 can also be made to protrude or retract from the opening 86 by switching to the operating position.

Further, both ends 41 and 42 of the operation plate 38 are exposed on the outer surface of the main body case 1 without the operation buttons 35 and 36 attached, and the ends 41 and 42 of the operation plate 38 are manually operated.
42 can also be pressed alternately. However, the operation mode for switching the operation plate 38 to the first and second operation positions may be a sliding type or a rotating type in addition to the swing type.

[Effect of idea]

As explained above, the electric shaver of this invention is provided with a moderation means on the head case 4 side for regulating the position of the head case 4 in the upright position and a tilted position, and a moderation means on the main body case 1 side that controls the position of the head case 4. An operation panel 38 that can be freely switched between the position and the second operation position
The head case 4 and the operation plate 38 can be operated by switching the head case 4 to a tilted position at the first operation position of the operation plate 38 and to an upright position at the second operation position. Linked by swing plate 45,
For example, a drive switch 30 other than the swinging mechanism of the head case 4, which is operated by switching the operation plate 38 between the first and second operation positions, is mounted on the main body case 1.
Other operated means such as an on/off mechanism are provided. Therefore, since regulation of the swing angle position of the head case 4 and regulation of the position of another operated means can be performed by one moderation means, the operation plate 38
can be operated with light force. Moreover, since the moderation means is provided on the head case 4 side, the head case 4
can effectively and reliably prevent inadvertent swinging due to drive vibration of the inner cutter.

[Brief explanation of the drawing]

Figures 1 to 12 show an embodiment of the electric shaver according to the present invention, in which Figure 1 is a sectional view of the main part with the head case in an upright position, and Figure 2 is a cross-sectional view of the main part of the head case. Fig. 3 is a perspective view of the overall appearance, Fig. 4 is a longitudinal front view, Fig. 5 is a longitudinal side view, Fig. 6 is an exploded perspective view of the whole, Fig. 7 The figure is an exploded perspective view of the swing operation system, No. 8
The figure is a sectional view showing the first operation button and the operation plate part with the second operation button pressed, FIG. 9 is a sectional view showing the first operation button and the operation plate part with the first operation button pressed, Fig. 10 is a front view showing the arrangement of the third operating button, switching plate, and switching lever of the battery switching operation system, Fig. 11 is a sectional view showing the state before the third operating button is pushed, and Fig. 12. is a sectional view showing a state in which the third operation button is pressed; 13th
The figure is a sectional view of a head case moderation means of an electric shaver showing another embodiment of the present invention. FIG. 14 is a sectional view of a head case moderation means of an electric shaver showing still another embodiment of the present invention. 1...Body case, 4...Head case, 5...
Shaft, 7... Elastic plate for moderation, 10... Engagement element for moderation, 14... Inner blade, 25... Outer blade, 30... Inner blade drive switch, 38... Operation plate, 45... Neck Shaking board, 85...kiwazori blade unit.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) The main body case 1 is pivotally connected to the main body case 1 so as to be rotatable around an axis 5 in an upright position in which it is substantially in line with the main body case 1 and in a tilted position in which it is inclined. A head case 4 having inner and outer blades 14 and 25, a moderation means provided on the head case 4 side to regulate the position of the head case 4 in an upright posture and a tilted posture, and a moderation means provided on the main body case 1 side. An operating panel 38 that can be switched between a first operating position and a second operating position, a head case 4, and an operating panel 38.
When the operation panel 38 is in the first operation position, the head case 4 is in a tilted position, and when the operation plate 38 is in the second operation position, the head case 4 is in a tilted position.
In addition to the swinging function of the head case 4, which is operated by switching between the two positions of the swinging plate 45 and the first and second operating positions of the operating plate 38, which are linked to each other so as to be able to switch to an upright position, respectively. An electric shaver comprising: an operated means; (2) The operated means is the drive switch 30 for the inner cutter 14.
An electric shaver according to claim 1, which is an on-off mechanism. (3) Utility model registration claim No. 1 in which the operated means is an egress/egress operation mechanism for the sharp edge unit 85
Electric shaver as described in section.